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<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>038-顺序结构.html</title>
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<body>
	
</body>
<script>	
	function sayNum(){
		console.log(4);
	}
	console.log(1);
	console.log(2);
	sayNum();
	console.log(3);
</script>
</html>